<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
</head>
<body>
  <script>
    let uname = prompt('姓名')
    let age = prompt('年龄')
    let gender = prompt('性别')
    document.write(uname,age,gender)
  </script>
</body>
</html>